"Shane O'Bree, two years assistant coach as a midfielder, and you replace him with Matty Primus, who has been a senior coach and an assistant for five years. Certainly the coaching ranks have been improved."

Ben Mathews will also take up a development coaching role with the Suns.

Riley started his AFL coaching career as an assistant at Fremantle before moving to Melbourne, where he was a caretaker head coach following the departure of Neale Daniher.